Subcutaneous herniation of fetuses after blunt force trauma in a cat
2020
Collins-Webb, Alexandra G | Hanna, Ashley L | Mehrkens, Lea R | VanderHart, Daniel J
A stray female domestic shorthair cat was presented to the emergency service after being hit by a car. The patient was recumbent and vocalizing, with a small wound over the right lateral thorax, and two palpably firm swellings in the right cervical and thoracic soft tissues. The patient was sedated and humanely euthanized to prevent further pain and suffering. Post-mortem whole-body radiographs and subsequent necropsy revealed abdominal wall rupture with herniation of two near-term fetuses within the subcutaneous tissues along the right ventrolateral thoracic wall and neck. Within the abdomen, the right uterine horn was ruptured and a third extra-luminal fetus was identified. The left uterine horn remained intact, containing a fourth fetus. Rupture of the abdominal wall or diaphragm are well-known potential complications of blunt force trauma, such as motor vehicle accidents. While traumatic uterine rupture and diaphragmatic herniation of the gravid uterus have both been reported in the veterinary literature, abdominal wall rupture with subcutaneous fetal herniation is highly uncommon.
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